// 通用样式
* {
	margin: 0;
	padding: 0;
}
a {
	color: #333;
	text-decoration: none;
}
a:hover {
	color: #f00;
}
.clearfix {
	zoom: 1;
}
.clearfix:after {
	content: '.';
	height: 0;
	visibility: hidden;
	display: block;
	clear: both;
}